Reenforcing hopper door for railway cars



Aug. 9,1927.

- G. G. GILPIN REENFORCING HOPPER DOOR FOR RAILWAY CARS Filed Aug. 14. 1925 2 Sheets-Sheet l wII1Ill111111111111IllIIIlIIllllIIlIllIlIlIIl/lI!!! hvejzzor Geri]; 6. 62?;7112 flltarn e g 5 2 5 1 a 8 .m 3 S 6 .y r t 1 e e h S 52 m C N Y A W L I nd R P LOM l G u ,.m P 6 H G m m w u 0 1 F N 5E m j 7 2 9 1 I! 9 g M Ji'zvenfar Ga f]: 6, 6212791 Patented Aug. 9, 1927! warren STATES GARTH GILPIN, OF RIVERSIDE, ILLINOIS, ASSIGNOR TOUNION METAL PRODUCTS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

REENFORCING- I-IOPIER'DOOR FOR RAILWAY CARS.

Application filed August 14, 1925. Serial No. 50,224.

The invention relates to a railway dump car having a door forming apart of the car for retaining the load therein, which 'door is provided with hinges adjacent one of its sides and is capable of being dropped as such must sustain the load as well as the impact blow when the car is in motion.

Second The car is frequently loaded from chutes or tipples from a height of ten feet or more, causing the load to be dropped directly upon the doors.

Third: Clam shell buckets are frequently used to unload such cars and it is not uncommon for these buckets to rest upon and drag over the doors.

Fourth: When to rest after being dropped, it is not only subject to a severe shock but it must sustain the severe impact thrust of the load which, of course, follows the door.

Fifth: As the load is theoretically equally distributed the door must be strong over its entire area and must be capable of trans mitting the resulting strains to the car body without much deflection andv no substantial distortion. Any bending of the door or drooping of the corners would cause a leak of the lading, especially of such fine material as sand, chats, etc. Any bending or warping might interfere with the complete closing and locking of the door. 7

The advantages of my door are applicable on any door of a freight car over which the lading moves when being dischargedfrom thecar such as drop bottom general service cars (used in the drawings), hopper ears. swinging side doors or hopper bottom coal cars, etc.

In the drawings:

Fig. l is a portion of a railway car with my device applied thereto. v

Fig. :2 is a section on line 2-2 of Fig. 1 portions being omitted to more clearly illustrate my invention. I

' of the door.

the door suddenly comes Fig. 9 shows a modified form of the corner reenforcement wherein the web is spaced apart from the body of the door.

My device comprises a metal plate 1 (preferably steel) downwardly flanged at its sides and reenforced with a pair of preferably corrugated reenforcements' 45 which cross and overlap each other (6) so that each reenforcement extends continuously between diagonally opposite corners This reenforcem-ent strengthens the door to carry loads imposed upon it, not only by the additional stiffness obtained by the reenforcements, plus their corrugations, but also by the truss arrangement at the crossing where the straight reenforcement forms a strut for the offset reenforce- ,7

ment. The arrangement of reenforcements also prevents the plate from buckling; or bending,.as any, line of bend must crossat least one of the reenforcements.

It is oldto' form a metallic plate door with a continuous flange extending on all sides'of the door, i. e., with a flange eXtending continuously around the corner, as shown in Fig. 6, forming aso-called solid corner so as to strengthen the corner. My reenforcements are provided with a flange 7-8 at each side of their opposite ends which.

are secured to the flange of the door on either side of the corner by rivets 9--10, thus strengthening the door flanges buckling or deflecting asvertical webs have a. tendency to do under load. The reenforcements are also preferably secured to the main body of the door as at 20. My arrangement prevents drooping of the corner of the door or, in other words, bending of the door along lines parallel to 2l-2l in Fig. 3. The corrugations, of course, assist in this reenforcement.

The flanged portion at the end of the reenforceinent may be used to perform the function of a continuous door flange so that against the door may be formed with separate flanges on each of its four sides, thereby making what'is called an open corner as shown in'Fig. 3. An open corner facilitates manufacture as it is not necessary toheat the plate to form it, v

Figs; 6 to ,9 inclusive show modifications wherein theconstruction is used to reenfo'r'ce' the corners of the door. The flange of this; corner rcenforceinent may be used to perform the functions of the solid corner flange on the door as described above. This corner-reenforcemen-t ispreferably secured to the door body, as at 1 1 ,-andprovioledwith a corrugation 12 or stifleningrib which substantially bisects the angle of the corner of the door and which preferably merges into the flange'13 1l 0t' thecorner reenfo'r'ce-' ment.

Fig. 9 showsamodification of thisrorn'er reenforcement wherein theflange 15l6 'of the door project's downwardly and'the flange of the corner reenter-cement 13-'1 l 'project's upwardly so that the web 17 of the corner reenforcement is spaced apart from the main body 18" (orweb) of the door, thusfor'm'ing a box girder construction tor'esist the drooping-of thecorne'r of the'door alonglines parallel to'1919 inFig-z 6. Theweb 1 7 then forms adir'ec't-tie to prevent the door flanges from buck'lmg;

I have shown r1 'v'etssecurmg the parts 'together but any other m'eans,' such as bolts or Welding, may he used and-s'till come within" the scopeof the invention."

I claim: I i

1. A- metallic plate door-comprisinga panel with'a flange at each side thereof, and a pair of 'reenforcement's which cross each other and' eXtendcontinuously between the diagonally opposite corners" ofthe door and are secured tosaid pa-nel; said reenforcements' providedwith a flange at each of their opposite ends secured to the adjacent fiangesof the door.

2. A metallic plate doorcomprising a panel with a flange at each side thereof,-'a'nda pair of corrugated reenforce'ments which cross each other and'extend continuously be: tw'een the' diagonally opposite corners of the door and ar'e sec'ure'dtdsaid panehsaid reenforcements provided with aflang-e at' each of their opposite ends secured to the adja cent flanges of the door.

3. A metallic plate door comprising a pa'nel with a continuous flang-e' at the sides thereof, and a pair of'reenforcements whichcross each other and extend continuously 'be tween'the" diagonally opposite corners" of the door and are'seci'ired-to said p'anel, saidre enforcements 'providedwith a" flange at each of their opposite ends secured to the'continuou's flange ofthedoor;

4. A metallic plate door' comprising a panelwith a continuous flang'eat' the sides thereof, and a pair of corrugated reenforcements which cross each other and extend continuously between the diagonally opposite' corners of the door and are secured to said panel, said reenforceinents provided with a flange at each of their opposite ends secured tothe continuous flange of the door.

5. In combination with a door as a railway car made of ametallic plate provided with flanges at its adjacent sides, and a corner reenforcement having a web portion and an integral flange at its adjacent sides secured t'o said door flanges, said web-provided with j an integral stiifening rib bisecting the angle'of the'door. r

6. In combination With a door forrail way ca-fr of a metallic plate" provided vid-ed with an integral stiflen'ing rib b-is'ecting the angle ofthe' door. e

8; In'combination with a door for a" rail-' way car made-of a metallic plate provided with downwardly projecting flanges at its adjacent sides, and a corner reenforcement having a web portiona'nd an upw'ar dly pro jecting-integral flange at its adjacent side's securedtos'a'id door flanges, said web 'pro-' vlded with an integral stifiening-ribbisect' ing the angle of" the door and merging into said flange.

9. In combination with a door'forar'ail way car made of metallic plate provided with flanges at its adjacent sides, and a'corner' reen'forceinent having a Web portion and an"integr'al flange f at its adjacent sides se cured tojsaid door"flanges, said web provided with an integral I stilfe'ning'rib' bis'ect ing the angleof thedo'orp 10. In combination' witha door for a'rail; way car made of a metallic p'la teprovided with flanges at its adjacent 'sides,'and a'corner-re'e'nforceme'nt having webportion and an 'integral flange at its'adjacent sides secured to said door flanges, said web providedw'ith an in-tegral'stifi'ening rib 'bisect' ing the angle of the door and merginginto saidflange. I

11: A metallic-plate dooi compr'ising a panel, and a pair of corrugated reenior ce-f Inent's' which cross each other; said reenlforcements and corrugations 1 extending continuously between the diagonally opposite corners of the door and are secured to said the diagonally opposite corners of the door panel. 7 and are secured to said panel, said reenforce- 12. A metallic plate door comprising a ments provided with a flange at each of their panel with a flange at each side thereof, and opposite ends into which the corrugations 5 a pair of corrugated reenforcenients which merge and which is secured to the adjacent cross each other, said reeniorcements and flanges of the door. corrugations extending continuously between GARTH G. GILPIN. 

